Window-jack



(No Model) G. PARKER.

WINDOW JACK. No. 412,785, Paten'ted Oct. 15, 1889.

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/'L ...a (E a UNITED STATES PATENT OFFICE.

CHARLES PARKER, OF I-IARTFORD, CONNECTICUT.

WIN DOW-JAC K.

SPECIFICATION forming part of Letters Patent No. 412,785, dated October15, 1889. Application filed June 29, 1889. Serial No. 316,098. (Nomodel.)

T0 all whom it may colwern:

Be it known that I, CHARLES PARKER, of Hartford, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovenients in lVindow-Jacks, of which the following` is a full,clear, and exaet description, whereby any one skilled in` the art canmake and use the same.

The object of my invention is to provide a simple and compact devicethat may be used for the purpose of atfording a support that projectsfrom a Window and beyond the outer face of the building; and to this endmy invention consists in the combination of the seat or support with theseveral fastening, folding, and bracing parts, as more particularlyhereinafter described,and pointed out in the claim.

Referring to the drawin gs, Figure 1 is a top view of my device shown inposition in awindow, the frame of which is shown in horizontalcross-section. Fig. 2 is a view in side elevation of the window-jack,part of the building being cut in vertical section. Fig. 3 is a detailview of the device in position for use, looking` from inside the window.

In the accompanying drawings, the letter a denotes the frame of thewindow-jack, that is of a length sufficient to extend across awindow-sill and of a width to enable it to be used in a window ofaverage size. This frame has on its inner end the holding-bars l) andb', that extend at each end beyond the frame, and are adapted to engagethe window-frame on the inside, as shown in Fig. 1 of the drawings. Thefloor of the frame is provided with a folding section a', that is hingedto one side, and the bars l) b' are. also provided with a hinged portionb, that enables the bar to be shortened. On that part of the frameadapted to be located on the outside of the window there is a bar c,that is adapted to rest upon the windoW-sill, and to this bar is hingedthe folding back cl and the folding bracket e. The back is made up ofthe arm d', hinged to the base-piece c, and also to the back d, the sideparts of Which are provided with tenons dg, that fit into socketsd4 inthat portion of the floorof the jack that projects outside of thewindow.

The bracket c is composed of a part e', that is hinged to the underneathpart of the basepiece c, and to this is hinged the prop e, that opensoutward a certain distance determined by the chain 63, so that thecross-piece may underlie the projecting part of the jack in position tofirmly support this part When the Window-jack is in use.

The window-jack, When not in use, may be folded up into compact shape,the main floor or frame folding down to about half the full length ofthe device, and the arms and bracketpieces also folding fiat against theframe, making a very compact structure for storage or transportation.

I claim as my invention- In combination With the frame composed of theseveral parts united by hinges, the cross-bars b b', secured across theinner end of the frame, the rest or base-piece c, secured to the Outerpart of the frame, the foldingback support d, the upright part d, beingprovided with the tenons (13, adapted to fit' sockets in the frame, andthe folding bracket attached to the under side of the frame, allsubstantially as described.

CHARLES PARKER. WVitnesses:

ARTHUR B. J ENKINs, III. E. BACHARACH.

